Forests and marshes make me joyful and glad; but before the joy is ended, sadness comes and succeeds to it. When sadness and joy come, I cannot prevent their approach; when they go, I cannot retain them. How sad it is that men should only be as lodging-houses for things, (and the emotions which they excite)! They know what they meet, but they do not know what they do not meet; they use what power they have, but they cannot be strong where they are powerless. Such ignorance and powerlessness is what men cannot avoid. That they should try to avoid what they cannot avoid, is not this also sad?